DIMENSION Subcommand (PRINCALS command)

DIMENSION specifies the number of dimensions that you want PRINCALS to compute.

  • If you do not specify the DIMENSION subcommand, PRINCALS computes two dimensions.
  • DIMENSION is followed by an integer indicating the number of dimensions.
  • If all of the variables are SNOM (single nominal), ORDI (ordinal), or NUME (numerical), the maximum number of dimensions you can specify is the smaller of the number of observations minus 1 or the total number of variables.
  • If some or all of the variables are MNOM (multiple nominal), the maximum number of dimensions is the smaller of the number of observations minus 1 or the total number of valid MNOM variable levels (categories) plus the number of SNOM, ORDI, and NUME variables, minus the number of MNOM variables without missing values.
  • PRINCALS adjusts the number of dimensions to the maximum if the specified value is too large.
  • The minimum number of dimensions is 1.